/Engine/Plugins/Experimental/ChaosVehiclesPlugin/Source/ChaosVehicles/Public/ChaosVehicleMovementComponent.h
Get the user input for the vehicle steering - can use this to feed control to a connected trailer
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Game|Components|ChaosVehicleMovement") float GetSteeringInput()